(3S,4S)-(-)-4-butyl-3-methylbutan-4-olide - faint coconut note, faint musty, earthy, remeniscant of hay Also known as 3S,4S-(-)-whiskey lactone Ref: A. Mosandl, W. Deger, M. Gessner, C. Gunther, G. Heusinger and G. Singer, Lebensmittelchem Gerichte Chem. 41, 35 (1987); B. Koppenhoefer, et. al., Perfumer & Flavorist, Vol. 19, No. 5, 1-14, 1994

(3R,4R)-(+)-4-butyl-3-methylbutan-4-olide - sweet woody, bright fresh coconut note Also known as 3R,4R-(+)-whiskey lactone Ref: A. Mosandl, W. Deger, M. Gessner, C. Gunther, G. Heusinger and G. Singer, Lebensmittelchem Gerichte Chem. 41, 35 (1987); B. Koppenhoefer, et. al., Perfumer & Flavorist, Vol. 19, No. 5, 1-14, 1994

(3R,4S)-(-)-4-butyl-3-methylbutan-4-olide -strong coconut note, reminiscent of celery Also known as 3R,4S-(-)-whiskey lactone Ref: A. Mosandl, W. Deger, M. Gessner, C. Gunther, G. Heusinger and G. Singer, Lebensmittelchem Gerichte Chem. 41, 35 (1987); B. Koppenhoefer, et. al., Perfumer & Flavorist, Vol. 19, No. 5, 1-14, 1994

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants